Lincoln Electric SVM186-A service manual PC Board Assembly Bypass L10121

Page 106
PRECISION TIG® 225

G-10

ELECTRICAL DIAGRAMS

G-10

PC BOARD ASSEMBLY - BYPASS (L10121)

 

 

3-L10121

ENGINEERING CONTROLLEDNo CHANGE DETAIL: REVISED P.C. BOARD BLANK INFORMATION

MANUFACTURER:

P.C. BOARD BLANK INFORMATION

BUY COMPLETE AS L10121-D (2 LAYER BOARD PER E3281

WITH LEAD FREE HASL SURFACE FINISH).

MAKES 12 BOARDS PER PANEL.

SEE ELECTRONIC FILE FOR ADDITIONAL INFORMATION

REFERENCES

QTY

PART NUMBER DESCRIPTION

 

C1, C2, C3, C4, C5, C6, C7, C8

8

T11577-58K

CAPACITOR,CD,.0047,3000V,20%

C9

1

S13490-155

CAPACITOR,POLYPROPYLENE METALLIZED

FILM,PPMF,15MF,250VAC,10%

R1

1

T14648-25

 

RESISTOR,WW,5W,10,5%,SQ

TP1, TP2

2

T13640-18

 

MOV,320VRMS,150J,20MM

 

 

CAPACITORS = MFD/VOLTS

 

 

INDUCTANCE = HENRYS

 

 

ITEM

REQ'D

PART NO.

IDENTIFICATION

 

1

1

SEE BLANK INFO.

P.C. BOARD BLANK

 

3

.16 OZ

E2861

SEALANT

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

N.F., N.G.

 

 

 

 

 

 

 

 

 

 

1.00

 

 

 

 

 

 

4.50

±.04

(3.462)

 

 

 

 

 

 

 

 

3.80±.04

 

 

 

R1

 

XXXXXXXXXXXXX

(3.450)

N.H.

 

XXXXXXXXXXX TP1

XXXXXXXXXXXXXXXXXXXXXXXXXX

C9

XXXXXXXXXXXXXXXXXXXXXXXXXXXXX

1

(1.900)

 

XXXXXXXXXXX XXX

 

BYPASS/STABILIZER

 

 

 

C5 C6 C7 C8 TP2

 

 

 

 

 

 

XXXXXXXXXXX XXX

 

 

 

 

 

C1

C2

C3

C4

 

 

-3

 

 

 

 

 

 

 

 

 

 

(.338)

 

 

 

 

XXXXXXXXXXXXXXXX

L10121

(.350)

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

0

(.438)

 

 

 

3

 

 

(4.250)

 

 

 

 

 

 

N.C.,

 

 

 

 

 

 

 

 

 

N.D.

 

 

 

 

NOTES:

N.C. SQUEEZE TOGETHER ITEMS C1-C4, TP1 AND

C5-C9, TP2 BEFORE APPLYING SEALANT. N.D. APPLY SEALANT AS SHOWN.

N.F. KEEP THIS AREA FREE OF ENCAPSULATION, TOP AND BOTTOM OF BOARD.

N.G. TIN ALL EXPOSED COPPER WITH SOLDER IN THIS AREA, BOTH SIDES OF BOARD.

N.H. NO ICICLES OR SOLDER BLOBS ARE PERMITTED WITHIN 0.5" 0 (BOTH SIDES).

MANUFACTURED AS:

L10121-3D0

IDE

ATION CODE

MAKE PER E1911-ROHS ENCAPSULATE WITH E1844, 2 COATS.

TEST PER E3553-B

SCHEMATIC REFERENCE: S22530-3D0

ALL COMPONENTS AND MATERIALS USED IN THIS

ASSEMBLY ARE TO BE RoHS COMPLIANT PER E4253.

FOR PARTS ORDERS ONLY:

INCLUDE S22772PRINT

 

 

 

PROPRIETARY & CONFIDENTIAL:THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OWNED BY LINCOLN GLOBAL, INC. AND MAY NOT BE DUPLICATED, COMMUNICATED

 

 

 

 

 

 

 

 

 

TO OTHER PARTIES OR USED FOR ANY PURPOSE WITHOUT THE EXPRESS WRITTEN PERMISSION OF LINCOLN GLOBAL, INC.

 

 

 

 

 

 

 

MANUFACTURING TOLERANCE PER E2056

 

 

 

EQUIPMENT TYPE:

SW TIG 175 & 275

 

 

 

___ OF ___

 

 

 

 

 

UNLESS OTHERWISE SPECIFIED TOLERANCE:

CONTROL: CLEVELAND

SCALE:

 

 

 

 

 

 

PAGE 1

1

 

 

 

 

 

ON 2 PLACE DECIMALS IS ± .02 in. (± 0.5 mm)

 

 

1:1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MATERIAL TOLERANCE ("t") TO AGREE

ENGINEER:

-

@ A2 SIZE

SUBJECT:

BYPASS/STABILIZERP.C. BOARDASSEMBLY

NUMBER:

 

 

REVISION:

 

 

 

 

 

ON 3 PLACE DECIMALS IS ± .002 in. (± 0.05 mm)

DRAWN BY:

fivory

IF PRINTED

 

 

 

 

 

 

 

 

 

 

DOCUMENT

 

 

DOCUMENT

EN-168

 

 

ON ALL ANGLES IS ± .5 OF A DEGREE

 

 

UNITS:

 

 

 

 

 

 

 

 

 

 

 

 

 

C

SOLIDEDGE

 

 

WITH PUBLISHED STANDARDS.

 

 

MATERIAL

UF

 

APPROVAL

 

PROJECT

CRM34432

 

REFERENCE:

L10121-3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DO NOT SCALE THIS DRAWING

APPROVED:

-

INCH

DISPOSITION:

 

DATE:

9-7-2007

NUMBER:

 

L10121-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty. Individual Printed Circuit Board Components are not available from Lincoln Electric. This information is pro-

 

 

Insight

 

 

 

 

 

 

 

vided for reference only. Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may

result in danger to the Machine Operator or Technician. Improper PC board repairs could

result in damage to the

 

 

 

 

 

machine.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Image 106
Contents Precision TIG ISAFETYi Safety Fumes and GasesPowered equipment For ElectricallyPrécautions DE Sûreté Sûreté Pour Soudage a LʼArcElectromagnetic Compatibility EMC Safety Master Table of Contents for ALL Sections Table of Contents Installation Section Installation Input Single Phase onlyModel Height Width Depth Weight K2533-2 Input at Rated OutputLifting and Moving Safety PrecautionsSelect Suitable Location Mounting TiltingInput and Grounding Connections Input Reconnect Procedure Return Section TOCConnections for TIG Gtaw Welding Connections for Stick Smaw WeldingPrecision TIG Table of Contents Operation Section Operation Product Description Recommended Processes and EQUIP- MentFigure B.1 Control Panel Control FunctionalityPOWER-UP Sequence Case Rear Components Machine Rating PlateOperating Steps Welding in TIG ModePulse TIG Control Operation Welding in Stick Mode Turn the power switch to onPrecision TIG Table of Contents Accessories Section Standard Equipment Packages AccessoriesTable C.1 Factory Installed Options Table C.2Field Installed Options K2348-1 Under-Storage CartTable of Contents Maintenance Section Routine and Periodic Maintenance MaintenanceSafety Precautions Spark GAP Adjustment1TABLE of CONTENTS-THEORY of Operation Section E-1 Theory of Operation Input Power CircuitGeneral Description Output Rectification Feedback Control ProtectedHigh Voltage / High Frequency Circuit Figure E.2 High Voltage/High Frequency CircuitDC Welding Output Figure E.5 DC Welding Current GenerationAC Welding Output Figure E.6 AC Square Wave Welding Current GenerationSCR Operation Figure E.7 SCR OperationOverload Protection Protective CircuitsThermal Protection VAC Receptacle1TABLE of Contents Troubleshooting and Repair F-1 Troubleshooting and Repair HOW to USE Troubleshooting GuidePC Board Troubleshooting Procedures WorkstationsPerform the T1 Transformer Amptrol is depressed Troubleshooting and Repair Perform the SCR Bridge Test Possible Areas Misadjustments Problems SymptomsRecommended Course of Action Troubleshooting and Repair Troubleshooting and Repair Problems Symptoms Electric Shock can Perform the SCR Bridge Test Stick electrode Blasts Off when Weld current may be set too Test Description High Frequency Circuit Disable ProcedureMaterials Needed Procedure Figure F.1 Spark GAP AssemblyT1 Transformer Test T1 Transformer Test Primary Windings Primary Voltages Precision TIG Static SCR Test Test Procedure Precision TIG 225 ControlCase Cover Removal and Replacement Procedure Precision TIG Active SCR Test Active SCR Test Figure F.6 SCR Gate Locations Precision TIG Normal Open Circuit Voltage Waveform AC TIG Mode Scope SettingsNormal Open Circuit Voltage Waveform DC TIG Mode Normal Open Circuit Voltage Waveform AC Stick Mode Normal Open Circuit Voltage Waveform DC Stick Mode Typical Output Voltage Waveform Machine Loaded AC TIG ModeMachine Loaded to 180 Amps AT 16VDC DC TIG Mode AC Stick Mode Machine Loaded to 180 Amps AT 26VDCDC Stick Mode Troubleshooting and Repair Precision TIG SCR Bridge Assembly Removal and Replacement Procedure SCR Bridge Assembly Figure F.7 Case Back Mounting ScrewsProcedure Plug J2 Removed Replacement Procedure Precision TIG Polarity Switch Removal and Replacement Procedure Polarity Switch Removal ProcedureReplacement Procedure Precision TIG High Voltage Transformer Removal and Replacement Procedure High Voltage Transformer Transformer Secondary LeadsFigure F.12 High Voltage Transformer Mounting Insulators Precision TIG 53F-53 Perform the SCR Bridge Assembly Replacement Procedure Input Idle Amps Retest After RepairRecommended Meters for Machine Output Tests Precision TIG Table of Contents Diagram Section Electrical Diagrams Schematic Complete Machine ALL Codes G5647 Schematic Control PC Board #1 G5640 Schematic Control PC Board #2 G5640 Schematic Control PC Board #3 G5640 PC Board Assembly Control #1 G5641 PC Board Assembly Control #2 G5641 1B0-S22530 PC Board Assembly Bypass L10121

SVM186-A specifications

The Lincoln Electric SVM186-A is a versatile and highly efficient welding machine that stands out in the competitive landscape of industrial welding equipment. Designed to meet the needs of both professionals and hobbyists, this machine combines advanced technology with robust construction, delivering outstanding performance in various welding applications.

One of the standout features of the SVM186-A is its multi-process capability. This welding machine can handle MIG, TIG, and Stick welding processes, making it suitable for a diverse range of projects, from light fabrication to heavy-duty work. This flexibility reduces the need for multiple machines, saving time and space for users who require versatility in their welding operations.

The SVM186-A is powered by a reliable and durable inverter technology, which ensures a stable arc and efficient operation across different materials, including stainless steel, aluminum, and mild steel. This inverter technology not only enhances performance but also reduces energy consumption, making it an environmentally friendly choice.

Another notable characteristic of the SVM186-A is its user-friendly interface. The digital display provides real-time information on voltage and wire feed speed, allowing welders to easily adjust settings for optimal results. This intuitive control panel design makes it accessible for both novice welders and seasoned professionals who value precision.

The machine is also built with safety features in mind. It comes equipped with overcurrent protection and thermal overload protection to prevent damage during operation. This ensures that users can work confidently, knowing that the equipment is designed to handle demanding tasks while prioritizing safety.

Portability is another advantage of the SVM186-A. Weighing in at a relatively light weight compared to other industrial welders, this machine is designed for ease of transport. Whether working on-site or in a workshop, welders can easily move the equipment as needed.

In summary, the Lincoln Electric SVM186-A is a sophisticated welding machine that merges technology and practicality. Its multi-process capability, inverter technology, user-friendly interface, safety features, and portability make it a top choice for those seeking dependable and efficient welding solutions. Whether for professional fabrication or personal projects, the SVM186-A is equipped to handle the demands of modern welding tasks with exceptional ease and effectiveness.